Overview
- Missouri has recorded 16 human West Nile cases in 2025 as of Oct. 4, with 15 hospitalizations and three deaths, which officials describe as a marked increase while additional cases are under investigation.
- Two Kansas City–area residents, one in Jackson County and one in Clay County, were among those hospitalized, according to state data.
- Neighboring Kansas reports elevated activity this year with 19 human cases and one death, state health data show.
- Pasadena Public Health confirmed the city’s first human case since 2022 on Oct. 9, and local officials reported no additional details on the patient’s condition.
- The San Gabriel Valley Mosquito and Vector Control District scheduled truck-based adulticide and larvicide applications in Monterey Park and West Puente Valley for Oct. 13–14, while health departments advise using EPA-registered repellents, wearing long clothing, eliminating standing water, fixing screens, and reporting dead birds.